If I read something at full brightness on my laptop I won't fall asleep either. Conversely, if I reduce the brightness to minimum over a minute or two I'll fall asleep soon.
You need N+2 redundancy for large drives. RAID1 or RAID5 will lead to data loss with good probability when a drive has failed, needs to be rebuilt and you get read errors on the remaining drives. The raw read error rate has been unchanged ar 10^-14 despite huge capacity growth.
Yeah, I'd like to see some matter from that star or system interact with something else at "normal" galactic speeds. That would be awesome, space opera stuff a la Doc Smith. A meteor or asteroid at 1/3rd c? Randall Munroe should look into this.
Haha. I stayed at a hotel with a golf course once (I don't play golf) and every guest had to acknowledge in writing that walking outside when golfers are present is inherently dangerous and that the hotel is not liable if you're hit by a ball.
"Access time"="time from sending the request until data starts to flow." For 1,000 times the IOPS the transfer rate and overhead on the bus would have to scale by three orders of magnitude too, which they don't.
Not really. There are a couple of developed nations that still have a high birth rate which shows that reduced fertility is not an automatic byproduct of developmnt. The current UN forecast is 11 billion in the early 22nd century. I think mother nature will have something to say about that.
I have several VMs on my system that each need at least a half TB to be useful (better a full TB.) A local cache of our SVN repo is again a couple 100 GB. Next, backups of my other systems, each a couple 100 GB at least. Next, a mirror of my server at work - nearly another TB or so. And a couple movie downloads that I haven't watched yet. Voila, over 5TB.
For some reason extrapolating exponential growth is very popular in certain circles. I assume that's because it detracts from other areas of exponential growth, like total population, energy consumption and CO2 emissions. Singularity, here we come!
There was an article recently (can't remember where) that made the case that with slowing density increase the lifetime of HDDs has to increase because you're not going to replace them after two or three years anyway because the next generation is so much better. Much better MTBF is clearly possible - just look at HGST versus the rest in the Backblaze reports.
Yup, in large arrays the trend is to go beyond RAID6 - see e.g. NetApp's DDP. Too bad there's so little technical info available about it.
There's a significant effect though: The market for lower capacity HDDs has disappeared, and with it much of the volume so the HDD manufacturers have to make their margins at the higher end. 1TB HDDs are an endangered species now because you can get a 120GB SSD for the same price and many consumers don't need 1TB while they appreciate the performance of an SSD.
Moore's law has been dead for years. It applied to Flash only in the beginning and the cells have reached physical limits, that's why it's only about cramming more cells into a package today.
When I started university the central ICL 1906 mainframe had 384 K words of core, and a year or two later we upgraded to 512KW (24 bit each) of "solid state" memory with the unbelievable access time of 0.3 microseconds. The paging devices were drums because of their much lower latencies compared to disk drives - we had quite a few drums with a couple MB. No mercury delay lines but the VDU display memory was coax delay lines. At least we didn't have to submit our programs on punch cards like the ME and EE peons - we were CS so we had *online* access!
Slashdot Mirror
Not these?
I'm partial to IBM/Unicomp buckling spring keyboards.
If I read something at full brightness on my laptop I won't fall asleep either. Conversely, if I reduce the brightness to minimum over a minute or two I'll fall asleep soon.
You need N+2 redundancy for large drives. RAID1 or RAID5 will lead to data loss with good probability when a drive has failed, needs to be rebuilt and you get read errors on the remaining drives. The raw read error rate has been unchanged ar 10^-14 despite huge capacity growth.
Yeah, I'd like to see some matter from that star or system interact with something else at "normal" galactic speeds. That would be awesome, space opera stuff a la Doc Smith. A meteor or asteroid at 1/3rd c? Randall Munroe should look into this.
Radiological Society of North America (RSNA): High School Football Players Show Brain Changes after One Season - even without concussion.
Haha. I stayed at a hotel with a golf course once (I don't play golf) and every guest had to acknowledge in writing that walking outside when golfers are present is inherently dangerous and that the hotel is not liable if you're hit by a ball.
I gave up browsing at some point, it was so bad. Amazon was a bit slow but worked OK.
"Access time"="time from sending the request until data starts to flow." For 1,000 times the IOPS the transfer rate and overhead on the bus would have to scale by three orders of magnitude too, which they don't.
Not really. There are a couple of developed nations that still have a high birth rate which shows that reduced fertility is not an automatic byproduct of developmnt. The current UN forecast is 11 billion in the early 22nd century. I think mother nature will have something to say about that.
You forgot the time to charge the flux capacitors.
I have several VMs on my system that each need at least a half TB to be useful (better a full TB.) A local cache of our SVN repo is again a couple 100 GB. Next, backups of my other systems, each a couple 100 GB at least. Next, a mirror of my server at work - nearly another TB or so. And a couple movie downloads that I haven't watched yet. Voila, over 5TB.
For some reason extrapolating exponential growth is very popular in certain circles. I assume that's because it detracts from other areas of exponential growth, like total population, energy consumption and CO2 emissions. Singularity, here we come!
There was an article recently (can't remember where) that made the case that with slowing density increase the lifetime of HDDs has to increase because you're not going to replace them after two or three years anyway because the next generation is so much better. Much better MTBF is clearly possible - just look at HGST versus the rest in the Backblaze reports.
Yup, in large arrays the trend is to go beyond RAID6 - see e.g. NetApp's DDP. Too bad there's so little technical info available about it.
WTF? HDDs have seek times in the milliseconds while total access time for SSDs is in the microseconds.
The metropolitan areas of the US have the same population density as Europe.
There's a significant effect though: The market for lower capacity HDDs has disappeared, and with it much of the volume so the HDD manufacturers have to make their margins at the higher end. 1TB HDDs are an endangered species now because you can get a 120GB SSD for the same price and many consumers don't need 1TB while they appreciate the performance of an SSD.
Moore's law has been dead for years. It applied to Flash only in the beginning and the cells have reached physical limits, that's why it's only about cramming more cells into a package today.
When I started university the central ICL 1906 mainframe had 384 K words of core, and a year or two later we upgraded to 512KW (24 bit each) of "solid state" memory with the unbelievable access time of 0.3 microseconds. The paging devices were drums because of their much lower latencies compared to disk drives - we had quite a few drums with a couple MB. No mercury delay lines but the VDU display memory was coax delay lines. At least we didn't have to submit our programs on punch cards like the ME and EE peons - we were CS so we had *online* access!
Here I was wondering how to program with one letter where even Brainfuck needs several.
There was an insanely pretty and tall woman with long blond hair in some of my MSCS courses. Way out of my league...
OMFG, Kosmos still exists? I had several of those about 40 years ago. But then I also had their electronics sets so that's where I ended up.
1)get a hot chick to put together jugsaw puzzles on youtube.
I don't think you can have hardcore gore horror on Youtube.
How much can they do with overvolting and watercooling?
There are other cases too, like Milt Olin.
LOL, for lying and impeding the fourth estate? There are much bigger fish to fry, e.g. killing of innocent people.